EP2502332A2 - Statorbaueinheit, insbesondere für mehrphasige elektrische maschinen und verfahren zur herstellung einer derartigen statorbaueinheit - Google Patents
Statorbaueinheit, insbesondere für mehrphasige elektrische maschinen und verfahren zur herstellung einer derartigen statorbaueinheitInfo
- Publication number
- EP2502332A2 EP2502332A2 EP10794858A EP10794858A EP2502332A2 EP 2502332 A2 EP2502332 A2 EP 2502332A2 EP 10794858 A EP10794858 A EP 10794858A EP 10794858 A EP10794858 A EP 10794858A EP 2502332 A2 EP2502332 A2 EP 2502332A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- stator
- coils
- coil
- stator segment
- winding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/08—Forming windings by laying conductors into or around core parts
- H02K15/095—Forming windings by laying conductors into or around core parts by laying conductors around salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/022—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with salient poles or claw-shaped poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/18—Windings for salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/52—Fastening salient pole windings or connections thereto
- H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
- H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49009—Dynamoelectric machine
Definitions
- Stator assembly in particular for multi-phase electrical machines and method for producing such a stator assembly
- the invention relates to a stator assembly for polyphase electric machine, in detail with the features of the preamble of claim 1.
- the invention further relates to a method for producing such a stator assembly.
- the high number of contacts causes a correspondingly high number of joining operations for connection to the interconnection units.
- Each individual joint connection represents a potential source of error during manufacture as well as later during operation.
- a central electricity distribution member for an electric induction machine is known, for example, which has the individual phases associated busbars for connecting disposed in the stator of the electric machine coils of the same phases, and a busbar in the insulating section, the a circular retaining groove for receiving a respective busbar and isolating the respective busbars from each other.
- fixation points are usually determined on the end faces of the bobbin, which serve as deflection points in the laying of the winding and / or fix the coil ends.
- the laying of the winding wire around the deflection also requires a lot of space and leads to an increase in the conductor length and winding losses.
- An alternative embodiment is to form an annular Statorbauhow from a unwound laminated core unit, wherein the unfolded grooves are wound continuously with a winding needle and subsequently lifted the settlement and the Connecting lines of the winding wires are guided by means of interconnecting elements axially in front of the coil ends.
- the winding tool When winding several stator segments with a winding needle, the winding tool requires sufficient working space in the predefined groove area. The coils are thus unable to fill the groove space accordingly, whereby such designs are characterized by a small Nutyoglltex.
- the adjacent pole-forming stator segments are spaced apart during winding, whereby the connections between the circumferentially adjacent coils have an excess length which in the final stator assembly is characterized by increased space requirements for placement and fixation and increase interconnection losses.
- Another significant disadvantage of the known embodiments is that in addition to the additional space requirement of the production cost and the cost of realizing the connections between the individual coil ends and the interconnection elements itself is very large.
- the invention is therefore based on the object, a Statorbauech for an electric machine with individually wound each polrelienden stator segments such that the required length of Statorbauech in the axial direction including the required interconnection can be kept short and the winding resistance for the windings of one phase low.
- the production should be possible in larger series with minimal cost and be automated if possible.
- the solution according to the invention is characterized by the features of claim 1.
- the method according to the invention is characterized by the features of claim 10.
- Advantageous embodiments are described in each case in the subclaims.
- a stator assembly for multi-phase machines having a plurality of circumferentially spaced apart to form grooves and forming a yoke or connectable with a yoke, wound with coils soft magnetic stator segments, wherein at least two coils of a phase are connected in series, characterized in that at least two stator segments of a phase form at least one stator segment chain, the coils of which and the connection of the coils to one another being formed by at least one continuous winding wire.
- only one continuous winding wire or several parallel wound winding wires are used within the stator segment chain, which have corresponding connections at the beginning and at the end, which are required for the contacts with the supply lines.
- stator assembly is thus characterized by a short axial length.
- At least two stator segments of a stator segment chain are arranged immediately adjacent to one another in the circumferential direction, wherein the coils of these stator segments have an opposite winding sense and the connection between the coils can be described by a short connecting path of the first or second type.
- the distinction between links of the first and second type is carried out in dependence on the position of the coil end of the upstream coil of a phase strand. If the coil terminates at the upstream stator segment in the common groove to the coil located downstream in the phase strand, a particularly short connection can be achieved.
- connection route of the first type is a so-called short short connection between the coils arranged adjacent to each other, which by guiding the winding wire from the coil end the common groove of the phase strand upstream coil is realized at the beginning of the downstream in the phase strand coil by the wire is arranged in the radial connecting paths in the space of the recess between the coil ends of the adjacent coils.
- connection to the downstream in the phase strand coil as a connecting path of the second type is longer and initially passes over the coil head of the upstream coil, since the last turn of the upstream coil ends after passing through the boundary groove with another adjacent stator segment.
- the wire path of the connecting path is then guided in the depression between the two coil ends in the yoke or head region and from there to the beginning of the downstream in the phase strand coil.
- the tangentially extending parts of the connecting paths are either axially in front of the yoke region or axially in front of the pole piece region of the stator assembly.
- stator segment chain in the circumferential direction spaced apart by more than one stator segment, the offset preferably being 180 degrees. If parts of the stator segments of a stator segment chain are arranged offset from each other in the circumferential direction, the individual parts form stator segment groups.
- the individual stator segment group is formed from in each case at least one stator segment, preferably a plurality of stator segments.
- the connection between the stator segment groups is described by a long connecting path of the first or second type, wherein this long connecting path extends over at least one or a plurality of intermediate stator segments.
- the individual stator segment groups comprise stator segment pairs with two stator segments arranged adjacent to one another in the circumferential direction, the winding direction between the stator segments of a pair of stator segments, as already described, being in opposite directions.
- Each of the individual stator segment groups may also consist of more than two stator segments, whereby here too the statement regarding the winding sense applies with respect to one another in the circumferential direction of adjacent stator segments. Over the long links there is the possibility of coupling stator segments of a phase string which are placed and secured at different locations on the circumference of the stator assembly.
- stator segment chains which are characterized by the connection of the coils in the circumferential direction of adjacent stator segments
- Statorsegmentketten which may extend over a very large extension area in the circumferential direction of a stator assembly, are free of joints between the individual coils of the individual stator segments and are characterized only at the beginning and at the end of the individual Statorsegmentkette by a corresponding connection.
- very compact stator segment chains can be prefabricated and stored and, in a simple manner, later assembled to form a stator assembly when using short connecting paths of the first or second type alone.
- this also applies to the Statorsegmentketten with long connections or a combination of short and long connections.
- stator segment chains can be used, which are characterized by the arrangement and design of stator segments with coupled coils with short connections and with long connections.
- stator assembly only from stator segment chains with short connections.
- the connecting paths between two successive individual coils to the end face of the soft magnetic stator segments are characterized essentially by an axial distance which exceeds the maximum distance of the outer coil head surface by less than a wire thickness.
- the connecting paths between two successive coils of a stator segment chain to the end face of the individual stator segments are arranged at a distance in the axial direction, which corresponds at most maximally to the maximum distance of the bobbin surface.
- the connections are laid in the axial coil head area and do not require additional space in the axial direction.
- the latter possibility is characterized by a small, in particular largely avoiding the extension of the connecting lines in the axial direction outside of the coil ends.
- connection between two coils of a Statorsegmentkette descriptive connecting path at least partially in the radial direction in a recess between two circumferentially arranged successively arranged coil ends.
- two possibilities are differentiated in the course of the connecting paths in the tangential direction and in the axial direction within the extension of the turns of the outer layers of coils extending coil, wherein the first through the outlet of the coil end of the upstream coil in the winding direction from the common groove with the circumferential direction subsequent stator segment and the surrounding coil is characterized.
- the second embodiment is characterized by the outlet of the coil end of the upstream coil in the winding direction from the non-common groove and the course of the wire over the coil head for recessing the coil heads before in the common groove.
- the characterizing winding wire course along the individual stator segments arranged in the circumferential direction is such that the available space at the individual coils themselves, due to the winding and the space of the turns of the top layer relative to the pad remains free , is used to guide the winding wire.
- the area of the coil is used which is free of turns of the upper layer.
- the long connection can be shifted into the arrangement plane of the individual coils.
- the ends of the stator segment chains which form a winding are preferably distributed uniformly circumferentially around the circumference and the number of end pairs corresponds to the number of phases or a multiple of the number of phases.
- the points of intersection between the long connecting sections lie in the region of the depression between two coil ends of different stator segment groups. This makes it possible to press at the crossing points closer to the soft magnetic stator winding wire from the overlying winding wire in the recess, so that the lower wire is axially deformed and the upper wire at a distance corresponding to the distance of the outer layer in the coil head run can.
- winding wire is preferably a round wire use.
- the winding of the individual coils themselves takes place to achieve a high filling density in an advantageous manner orthocyclic.
- the method according to the invention is essentially determined by the method steps which are described below.
- stator segment chains of all phases to a ring and alignment / fixture.
- stator segments to be wound are arranged stationary and the winding wire is guided, for example by means of a winding needle or the stator is moved relative to the winding wire. Both possibilities can also be realized when winding the stator segment chains.
- stator-segment pairs that is to say stator segments which are arranged directly successively in the installed position in the circumferential direction.
- the winding tool used for the winding process comprises a carrying device with at least two different receiving or supporting axles for the stator segments, the carrying axle being tilted at an angle to one another for winding the stator segment following in the stator segment chain with respect to the supporting axis of the upstream stator segment this tilted state, the wrapping is done to produce the short link between the coils of the circumferentially successive stator segments.
- the short connecting path can be generated directly in the angular range of the stator segments positioned in this way, with the connection then passing between in the installed position. chen end portions of the stator is carried out or taking advantage of the tilting characterizing angle. In the latter case, the connection path describes the connection between in the installation position in the radial direction different end portions of the stator segments.
- stator segments can be aligned again and the end position are spent relative to each other, which is done by tilting the support shaft in a plane with the support shaft of the upstream stator segment. This process can take place in the context of prefabrication or by tilting each of the center axes of the stator segments to each other only during assembly.
- the individual stator segment chains are preferably formed from multi-pole stator segment sectors with short connections of the first type and connections of the second type and long connections between the multi-pole stator segment sectors, the assembly of the individual stator segment chains of the individual phases occurs one after the other. It is sufficient for the alignment of the stator segment of the first phase to be mounted still a simple axial movement. For the second phase, several movements in space are required, which are essentially characterized by radial and axial movements, while for further phases, the respective directions of movement can be further varied, the different connections being allowed by the long connection.
- the solution according to the invention can be used for the creation of a wide variety of stator structural units with wound stator segments and at least two stator segments per phase. This is not limited to a specific machine type certain phase or Pollustrate a multi-phase electric machine.
- the electric machine may be an internal rotor or an external rotor machine.
- FIG. 1 illustrates a perspective view of an advantageous embodiment of a Statorbautician invention in a particularly advantageous embodiment
- FIG. 2 illustrates, with reference to a section of FIG. 1 for a stator segment, the realization of a short connecting path of the first type between two coils which follow each other in the circumferential direction;
- FIG. 3 illustrates the embodiment of the long connecting path between the stator segments of two stator segment groups of a stator segment chain on the basis of a section from FIG. 1;
- FIG. 4 illustrates, by way of example, the arrangement of the individual stator segments for winding
- Fig. 5 illustrates by way of example the resulting arrangement and interconnection of the coils of the stator segment chain B in functional position
- FIG. 6 illustrates, on the basis of a process flow diagram, the sequence of a method according to the invention for producing a stator assembly.
- FIG. 1 shows, in a simplified schematized representation, a perspective view of the basic structure of a stator assembly 1 designed according to the invention for use in electric induction machines.
- Such machines are preferably used as servo motors in automated transmissions and are therefore characterized by a high power density due to the available space.
- the electric induction machine can be formed with an external or internal rotor, wherein the stator assembly 1 shown in Figure 1 is used in an electric induction machine with internal rotor.
- the Statorbautician 1 comprises a plurality of stator segments 2, which are also referred to as poles and consist of a tooth and yoke region 3.
- the individual stator segments 2 form at the circumference angular sectors of the stator assemblies and abut each other in the yoke region 3, wherein in the illustrated case, the stator segments form a joint 4 approximately in the center of the groove.
- the individual slalers segments 2 are in the circumferential direction of the stator assembly 1 adjacent to each other to form grooves and are made of a soft magnetic material.
- the attachment of the yoke 3 in a housing is preferably carried out by pressing the preassembled stator assembly in a housing sleeve, not shown here, in which case reference can be made to a variety of ways that allow easy installation and replacement of the individual stator segments 2.
- the individual stator segments 2 are arranged in stator segment chains, which are designated here as A to C in execution as Statorbauech 1 for a three-phase induction machine. In each case one stator segment chain A to C is assigned to one phase.
- stator segment chains A to C consists of at least two stator segments which are wound to form coils 6, wherein the individual coils of a stator segment A to C are each connected in series and according to the invention of a continuous winding wire 7A to 7C are formed, that is free of joints. Instead of just one wire, two or more wires can be wound in parallel.
- the stator assembly 1 comprises, by way of example, twelve pole-forming stator segments 2, wherein one stator segment chain A to C are each assigned four such stator segments.
- stator segments of the stator segment chain A are denoted here as 2A1 to 2A4, the stator segments of the stator segment chain B as 2B1 to 2B4, and the stator segments of the stator segment chain C as 2C1 to 2C4.
- Each stator segment 2A1 to 2C4 is wound with a coil 6A1 to 6C4.
- the individual coils 6A1 to 6A4 of a phase A are connected in series and are formed by a continuous winding wire 7A free of joints and breaks or required connections.
- this also applies to the coils 6B1 to 6B4, 6C1 to 6C4 associated with the stator segments 2B1 to 2B4 and 2C1 to 2C4.
- the latter are each formed by the winding wires 7B and 7C.
- stator segment chains A to C are characterized by two stator segment groups, in the embodiment shown in Figure 1 in the form of stator segment pairs 8A, 9A and 8B, 9B and 8C, 9C.
- the individual stator segments of a stator segment group in particular stator segment pair of a stator segment chain A to C, are arranged directly adjacent to each other in pairs in the circumferential direction.
- stator segments 2A1, 2A2 form the stator segment pair 8A
- stator segment pair 9A is formed by the stator segments 2A3 and 2A4.
- stator segment pairs 8B and 9B which respectively consist of stator segments 2B1, 2B2 and 2B3, 2B4 and the stator segment pairs 8C and 9C, which are each formed by stator segments 2C1, 2C2 and 2C3, 2C4 and the associated coils 6A1 to 6C4.
- the individual stator segments of a Statorsegmentpres, here 2 M , 2 A2 of Statorsegmentpases 8A, 2 B i, 2 B2 Statorsegmentschreibes 8B, 2 C i, 2 C2 of Statorsegmentschreibes 8C and 2 A 3, 2 A4 of Statorsegmentschreibes 9A, 2 B 3, 2 B4 of the Statorsegmentschreibes 9B and 2 C 3, 2o4 of Statorsegmentschreibes 9C are with respect to their coils 6 A i, 6A2 for 8A, 6 B i, 6 B2 for 8B and 6 C i, 6 C 2 for 8C each by means of the Winding wire 7A to 7C characterized by a short connecting path of the first kind 10A, 10B, 10C.
- a 6 for the Statorsegmentpress 9A, B 6 3, 6 B4 for 9B and 6 C 3, 60 4 for 9C are the short links of the second type 11 A referred to 11C.
- the stator segment pairs here by way of example the stator segment pair 8A and the stator segment pair 9B of the stator segment chain A, are furthermore coupled to each other via a long connection connecting section 12A, here of the second type.
- the individual stator segment pairs 8A and 9A of a stator segment chain A are viewed in the circumferential direction opposite each other, that is, offset by 180 degrees to each other.
- the coils of a Statorsegmentschreibes here 6 A i and 6A2 for the Statorsegmentschreib 8A and 6 A 3, 6 A4 for the Statorsegmentschreib 9A are each characterized by an opposite sense of winding to ensure proper alignment of the resulting electric fields. This applies by analogy in each case also for the coils 6 B i, 6 B2 of Statorsegmentschreibes 8B, 6 B 3, 6 B4 of Statorsegmentschreibes 9B, 6 C i, 6 C 2 of the Statorsegmentschreibes 8C and 6 C 3, 6 c4 Statorsegmentcoveres 9C.
- stator segment pairs 8A, 9A or 8B, 9B and 8C, 9C coupled to one another via the long connecting paths 12A to 12C are characterized in the concrete embodiment according to FIG. 1 by the coils present at the beginning and at the end of the long connecting section 12A to 12C each have 6 / ⁇ and 6 A3 or 6 B2 , 6 B3 and 6 C 2, 6 C 3 have the same winding sense.
- All coils 6 A1 to 6 A, 6 B1 to B4 6 and 6 C i ⁇ to 6 are preferably ortho cyclically wound to achieve a high fill factor with a round wire.
- the orthocyclic winding is characterized in that the available space is optimally utilized by depositing the turns of the upper coil layer in the valleys of the coil layer arranged underneath and the crossings of winding wires 7A to 7C together only in the coil heads, ie outside the grooves, done.
- the at least two circumferentially successive coils of a Statorsegmentoli here the Statorsegmentprese 8A, 9A, 8B, 9B and 8C, 9C are wound such that the short connection generating connecting path of the first type 10A to 10C or second type 11 A to 11 C in the mounted stator assembly 1 axially does not protrude beyond the winding head forming coil ends.
- the winding wire 7A is in the range of the short link of the first type 10A by a radial gradient in the well between the coil ends of the coils 6 A i, 6 / ⁇ is characterized.
- the coil 6 A i, 6A2 of the stator 2 A i, 2A2 of the Statorsegmentpreses 8A formed such that the windings of the coil 6 A i of the stator segment 2 A i end in the region of the common groove 14A formed between them and thus be led directly radially into the region of the yoke 3 and on this radius to the beginning of the coil following in series within the stator segment chain A, here 6A2.
- connection 11 A is guided radially in the recess between two adjacent coil heads in the yoke region and passes on this radius to the winding in following direction coil 6 A4 in the region of the inner periphery 4 of the yoke.
- the winding of the following reel 6A2 and 6 A4 starts on the radially outer portion of each stator segment, here 2a_, 2 A4, ie in the region axially in front of the yoke 3.
- the coil ends are usually in the radially middle groove region, that is, the outer layer of the coil is only partially filled.
- a long connection of the second type 12A to the coil 6A 3 of the stator segment pair 9A takes place in a particularly advantageous manner in the radially inner end region of the stator assembly 1 in the space not occupied by the outer layers of the coils.
- the winding wire 7A is tangentially continued on the coil heads of the other phases past the coil 6 ⁇ 2 in the direction of the coil 6 A3 .
- Such tangential connecting sections in the course of the connections between individual coils, in particular of short connecting paths of the second type 11A and long connecting paths of the second type 12A using the example of the stator segment chain A thus have a distance from the end face of the soft magnetic pole cores in the form of the respectively involved stator segments 2 A i to 2 A4 , which corresponds to the maximum distance of the winding wire 7A in the outer layer of the coils 6 A to 6 A4 .
- This gradation in the coil or winding heads arises from the fact that the outer or upper layer relative to the outer circumference of the individual stator segment 2 A i to 2 C 4 has fewer turns and these are in the radial direction of the stator 1 radially outward.
- the tangential width of the individual coil is greater in the installed position in the stator assembly 1 in the radial direction toward the outer circumference than in the region of the inner circumference 15 of the stator assembly 1.
- the long connections of two Statorsegmentketten intersect, for example, A and B, A and C or B and C.
- These intersection points are denoted here by 16.1 to 16.3 and are preferably also in the region of a depression between adjacent coil ends, that is, the crossing occurs in such a way in that the axially outer and crossing winding wire is led, starting from an uppermost layer of a preceding coil, over a different winding wire guided along a lower layer of the same coil.
- the respective ends of the winding wire 7A to 7C of the individual Statorsegmentketten A to C which are respectively designated 7A1 and 7A2 or 7B1, 7B2 and 7C1, 7C2, are in the axial direction from the axial in functional layer plane of arrangement of the stator segments 2 A i to 2c 4 led out.
- the alignment preferably takes place in the region of an upper layer, wherein the fixing and guiding of the end regions takes place in such a way that they are guided in the radial direction in the region of the yoke 3 and aligned in the radial direction in the center direction and in the region of the extent of the stator segment 2 M to 2 C4 are led out of this, preferably central region in the axial direction.
- the individual features for the formation of the windings of a phase as one-piece phase strands, that is, free of interruptions, are shown in FIGS. 2 to 3 in a schematically simplified representation.
- Figure 2 shows this in a detail view of the radial gradient of the short connection characterizing link of the first type 10A between the coils 6 A i and 6 ⁇ 2 ⁇ are recognizable for the individual stator segment 2 A i and 2 ⁇ the embodiments of the coils 6 A i and 6A2 , the end portion 7A1 of the winding wire 7A taken out in the axial direction out of the stator segment plane together with the end portion 7C2 of the winding wire 7C of the stator segment chain C, leading out in the 90 degree direction out of the plane of the stator assembly 1 and thus substantially parallel to the center axis M of the stator assembly 1 takes place.
- end portion 7A1 which forms the initial portion of the realized through the winding wire 7A series connection of the individual coil 6 A i to 6 A 4 Statorsegmentkette A, relative to the stator 2 A tangentially on the formed on this coil 6 A i to the top layer 17 of the coil 6 A1 and out of the winding area into the intermediate space, here the groove 18 to the stator segments of the stator segment pair 9C.
- the end region 7A1 is fixed in the region of the yoke 3 or fixed by means of corresponding surface regions 19 of the bobbin of the stator segment 2 A1 , which are formed here by projections.
- the individual coils 6 A and 6 ⁇ are wound orthocyclically, wherein the upper layers are each stored in the conditional by the cross section of the winding wire gaps.
- the winding around the circumference of the individual stator segment 2 ⁇ ⁇ takes place at an angle to the radial direction.
- the guide of the winding wire 7A takes place in the installed position from the radially outer region in the direction of the radial inner circumference 15 of the Statorbauaji and back from this, the passage to the circumferentially in series with this coil 6Ai connected coil 6A 2 in the radial direction between the inner circumference 4 of the yoke 3 and the inner periphery 15 of the Statorbauaji takes place.
- the winding wire 7A is then via the connection 10A from the coil 6 A i whose end portion extends into the groove 14A, in a radially outward direction in the region or in parallel to the center line of the groove 144A in the radially outer yoke region of the stator segment 2A. 2
- the guide takes place here within the recess formed by the windings between the coil ends of the individual coils 6 A1 , 6 A2 .
- a tangential guidance of the winding wire 7A according to the second type is reproduced here for the coil end of the coil 6A2. This ends before the entry into the next groove arranged in the circumferential direction, which is formed between the stator segment 2A2 and the stator segment 2 B3 of the stator segment chain B arranged adjacent to the stator segment 2 ⁇ 2 ⁇ circumferential direction.
- This guide of the winding wire 7A1 is included in the formation of the long connecting path of the second type 12A for coupling with the stator segment pair 9A (not shown here).
- FIG. 3 illustrates, with reference to a detail view from FIG. 1, the tangential course of the longer connection 12B in front of stepped coil heads.
- the winding wire 7B is guided by the stator segment 2 B 2 of the stator segment group 8A to the stator segment 2 B 3 of the stator segment group 9B.
- the guide along the circumferentially arranged between these stator segments in the illustrated section of the stator 2c 3 , 2c4 , 2 A i, 2A2 , the phases C and A by the at the individual coils 6 C 3, 6 C 4 , 6th A i, 6 / ⁇ due to the gradation between the top layer 17 and an underlying layer 20 provided free space 21.
- This is based on the position of the stator in functional position in the region of the inner periphery 15 of the stator 1 provided.
- the single intersection point 16.1 is preferably in the range of gradation between the winding layers of a coil, here 6 / ⁇ and in the region of the depression between two coil heads of different coil pairs (8A, 9B) or immediately adjacent to them.
- FIGS. 1 to 3 illustrate a particularly advantageously designed stator assembly 1 with three phases and 12 wound poles.
- FIG. 4 shows, in a simplified schematic illustration, the course of the connecting sections using the example of the connecting section 12A during manufacture and as a prefabricated stator segment chain A.
- FIG. 6 illustrates the sequence of the method for producing a stator module 1 on the basis of a signal flow diagram.
- stator segments of a stator segment chain are provided in a first method step VA and aligned with one another on a winding tool.
- the arrangement on the winding tool is shown schematically greatly simplified example in Figure 4 for the stator segment A chain.
- the orientation of the individual stator segments 2 A i to 2 A 4 corresponds essentially to the circumferential direction of the layer in which the stator segments are aligned with one another in the finished stator assembly 1, with the individual stator pairs 8A and 8B to be connected to one another over the long connection path 12A 9A are arranged in a plane or in the actual position on the support, not shown here, of a winding tool.
- the orientation in the axial direction can be designed differently.
- the leadership of the winding wire 7A preferably takes place by means of a winding needle to stationary stator segments.
- FIG. 4 illustrates the completed winding of the stator segment chain A on the carrier device, not shown, of the winding tool (not shown). Shown are only the support shafts T1 to T4 for the individual stator segments.
- the support shafts T1, T2 and T3, T4 for the immediately adjacent circumferentially adjacent stator 2 M , 2A2 and 2 A3 , 2 A 4 are arranged at an angle to each other, wherein each of the yoke portion 3 of the stator segments of the circumferentially adjacent stator 2 and segment 2 A4 is folded out of the axial plane in an angular range of preferably 20 degrees to 90 degrees with respect to the preceding stator segment 2 A i and 2 A 3.
- stator segment groups with a plurality of stator segments, which are to be coupled to one another via short connecting paths of the first type
- the arrangement and alignment on the tool can alternately be tilted relative to one another.
- the stator segments are arranged and fixed and in the subsequent step VB the winding wire 7A in the desired manner to the individual stator segments 2 A i, 2 A 2 and 2 A 3, 2 A 4 of the stator segment A sequentially.
- the circumferentially adjacent stator segments 2 A , 2 / ⁇ and 2 A3 , 2 A4 are each wrapped in different directions. Deviating from the stator segment chains in FIGS. 1 to 3, FIG.
- FIG. 2 shows the production of a stator segment chain which has a short connection of the second type 13A after the first coil and then a long connection of the first type and the third coil after the second coil a short connection of the first kind.
- the order of the stator segment pairs 8A and 9A is thus reversed.
- the illustrated in Figure 2 short connection 1 1 A is here by the corresponding leadership of the winding wire 7A from the radially inner in the installed position of the stator 2 A in the outer region in the radial direction, which was folded out of the axial plane, on the stator 2 A2 and thus the follower coil 6 / ⁇ realized.
- the decisive factor is that the take-over of the winding sense is changed. If, according to FIG.
- the stator segment chain A is characterized by stator segments that are spaced apart from one another in the circumferential direction, the transition between the stator segment groups 8A, 9A on the carrier device is preferably also guided along a circular segment or a flat surface in order to realize the long connection segment 13A.
- the other stator segment chains B, C can be produced analogously.
- the support shafts can be tilted in such a way that the opening angle between the pole heads of the adjacent reduced Statorsegmenete to the final value and sets the desired small groove slot.
- these can be non-positive or positive-locking and thus detachable or even insoluble.
- FIG. 6 illustrates, in method step VA, the provision of the tool and the alignment of the individual stator segments on the tool and method step VB the winding process and, in method step VC, the assembly into a ring which can be inserted into a housing.
- Reference numeral list stator assembly
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Windings For Motors And Generators (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009053484 | 2009-11-16 | ||
DE102009059737 | 2009-12-21 | ||
PCT/DE2010/001250 WO2011057599A2 (de) | 2009-11-16 | 2010-10-26 | Statorbaueinheit, insbesondere für mehrphasige elektrische maschinen und verfahren zur herstellung einer derartigen statorbaueinheit |
Publications (2)
Publication Number | Publication Date |
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EP2502332A2 true EP2502332A2 (de) | 2012-09-26 |
EP2502332B1 EP2502332B1 (de) | 2016-04-06 |
Family
ID=43877205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP10794858.0A Revoked EP2502332B1 (de) | 2009-11-16 | 2010-10-26 | Statorbaueinheit, insbesondere für mehrphasige elektrische maschinen und verfahren zur herstellung einer derartigen statorbaueinheit |
Country Status (6)
Country | Link |
---|---|
US (1) | US20120228983A1 (de) |
EP (1) | EP2502332B1 (de) |
JP (1) | JP5762428B2 (de) |
CN (1) | CN102714441B (de) |
DE (1) | DE102010049620A1 (de) |
WO (1) | WO2011057599A2 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102011082665A1 (de) * | 2011-09-14 | 2013-03-28 | Robert Bosch Gmbh | Stator für eine elektrische Maschine |
DE102011089902A1 (de) * | 2011-12-27 | 2013-06-27 | Robert Bosch Gmbh | Verfahren zum Herstellen einer Maschinenkomponente für eine elektrische Maschine sowie eine Maschinenkomponente |
TWM475102U (zh) * | 2013-11-25 | 2014-03-21 | Shun Fu Technology Inc | 感應式發電裝置 |
JP6626514B2 (ja) * | 2015-12-25 | 2019-12-25 | 日立オートモティブシステムズエンジニアリング株式会社 | 回転電機 |
TWI602385B (zh) * | 2016-09-01 | 2017-10-11 | 建準電機工業股份有限公司 | 內轉子馬達及其定子 |
US10256682B2 (en) * | 2016-09-28 | 2019-04-09 | Emerson Electric Co. | Stator assemblies for three phase dynamoelectric machines and related winding methods |
DE112017005829A5 (de) | 2016-11-18 | 2019-08-08 | Schaeffler Technologies AG & Co. KG | Sammelschiene mit einem Blechstapel sowie Verfahren zum Herstellen einer Sammelschiene |
EP3352341A1 (de) * | 2017-01-20 | 2018-07-25 | Ovalo GmbH | Statorpaket und verfahren zum herstellen eines statorpakets |
GB2563616B (en) | 2017-06-20 | 2021-03-10 | Dyson Technology Ltd | A stator assembly |
DE102018120235A1 (de) * | 2018-08-20 | 2020-02-20 | Schaeffler Technologies AG & Co. KG | Kompakte Fertigungsstation zum Zusammenfügen eines Stators für einen Elektromotor aus Statorsegmenten |
DE102018217558A1 (de) * | 2018-10-12 | 2020-04-16 | Continental Automotive Gmbh | Elektroantrieb, Bremsvorrichtung und Fahrzeug |
DE102018217852A1 (de) * | 2018-10-18 | 2020-04-23 | Bühler Motor GmbH | Gleichstrommotor und Verfahren zur Herstellung eines Gleichstrommotors |
CN111355317B (zh) * | 2020-04-09 | 2021-08-27 | 合肥巨一动力系统有限公司 | 一种扁线定子及扁线电机 |
CN114243979A (zh) * | 2021-12-13 | 2022-03-25 | 深圳市金岷江智能装备有限公司 | 定子绕线及过渡线方法 |
CN114204725B (zh) * | 2022-02-16 | 2022-05-31 | 珠海英搏尔电气股份有限公司 | 定子组件、电机、动力总成和交通工具 |
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JPS5130565Y1 (de) * | 1967-05-12 | 1976-08-02 | ||
US6941644B2 (en) | 1999-09-27 | 2005-09-13 | Reliance Electric Technologies, Llc | Method for winding segments of a segmented wound member of an electromechanical device |
JP4727789B2 (ja) * | 2000-07-11 | 2011-07-20 | 株式会社日立製作所 | 回転機およびその製造方法 |
JP2002176753A (ja) * | 2000-12-07 | 2002-06-21 | Matsushita Electric Ind Co Ltd | 電動機固定子の製造方法及びその固定子 |
JP2002325385A (ja) * | 2001-02-22 | 2002-11-08 | Moric Co Ltd | 回転界磁型電気機器のステータ構造 |
JP2003324886A (ja) * | 2002-04-30 | 2003-11-14 | Sankyo Seiki Mfg Co Ltd | モータ及びその製造方法 |
US7135799B2 (en) * | 2003-03-19 | 2006-11-14 | Pacsci Motion Control, Inc. | Method for winding a stator of multi-phase motors |
JP4112535B2 (ja) * | 2004-07-30 | 2008-07-02 | 株式会社一宮電機 | ステータ及びブラシレスモータ |
JP4708816B2 (ja) * | 2005-03-08 | 2011-06-22 | アイチエレック株式会社 | 電動機の固定子の巻線方法と、その電動機の固定子 |
JP4527602B2 (ja) * | 2005-05-30 | 2010-08-18 | 日立オートモティブシステムズ株式会社 | ステータコイルの製造方法 |
JP2007129847A (ja) * | 2005-11-04 | 2007-05-24 | Denso Corp | 電動機およびそれを用いた燃料ポンプ |
JP4916730B2 (ja) * | 2006-02-07 | 2012-04-18 | アスモ株式会社 | ステータの製造方法及びステータ |
GB0609045D0 (en) | 2006-05-06 | 2006-06-14 | Trw Ltd | Electric motor windings |
DE112007003031A5 (de) | 2006-12-14 | 2009-09-10 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Elektrische Maschine und Verfahren zum Herstellen einer solchen |
AT505066B1 (de) * | 2007-03-16 | 2008-12-15 | Egston System Electronics Egge | Verfahren zum maschinellen wickeln einer spule |
DE102007037611B3 (de) * | 2007-08-09 | 2009-06-10 | Continental Automotive Gmbh | Spulenträger mit Sonderkontur |
JP4494457B2 (ja) | 2007-12-12 | 2010-06-30 | トヨタ自動車株式会社 | 回転電機の集中配電部材 |
CN101483359B (zh) | 2008-01-11 | 2012-08-22 | 德昌电机(深圳)有限公司 | 电机定子结构及其形成方法 |
US8072112B2 (en) * | 2008-06-16 | 2011-12-06 | Asmo Co., Ltd. | Motor, stator, and method for manufacturing stator |
JP5389559B2 (ja) * | 2009-07-23 | 2014-01-15 | 愛三工業株式会社 | 回転電動機の固定子及び燃料ポンプ |
-
2010
- 2010-10-26 CN CN201080051971.9A patent/CN102714441B/zh not_active Expired - Fee Related
- 2010-10-26 WO PCT/DE2010/001250 patent/WO2011057599A2/de active Application Filing
- 2010-10-26 EP EP10794858.0A patent/EP2502332B1/de not_active Revoked
- 2010-10-26 JP JP2012539177A patent/JP5762428B2/ja not_active Expired - Fee Related
- 2010-10-26 DE DE102010049620A patent/DE102010049620A1/de not_active Withdrawn
-
2012
- 2012-05-16 US US13/472,712 patent/US20120228983A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
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See references of WO2011057599A2 * |
Also Published As
Publication number | Publication date |
---|---|
DE102010049620A1 (de) | 2011-05-19 |
CN102714441B (zh) | 2015-06-17 |
WO2011057599A3 (de) | 2012-06-21 |
US20120228983A1 (en) | 2012-09-13 |
CN102714441A (zh) | 2012-10-03 |
JP5762428B2 (ja) | 2015-08-12 |
JP2013511256A (ja) | 2013-03-28 |
WO2011057599A2 (de) | 2011-05-19 |
EP2502332B1 (de) | 2016-04-06 |
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